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(No M00181. 3 Shets-Sheet 1.

J. S. MARSHALL. I

WINDMILL.

No. 885,676. Patented July 3, 1888.

' i S WITNESSES: P

INVENTOR:

4. M 8 .8 BY

ATTORNEYS.

(No Model.) 3 Sheets-Sheet 2 J. S. MARSH ALL.

WITNESSES INVBNTOR %M.

ATTORNEYS.

N. PETERS, Pholo-Lithugnphur, wmau wil. nc.

(No Model.) 3 Sheet-Sheet 3. J. S. MARSHALL.

WINDMILL; No. 386,676. Patented Ju1y'3, 1888 an? V 1 0 0 5:31:36) Q\ we3; l

WITNESSES: INVENTOR: W 14i BY ATTORNEYS.

llnrrno STATES PATENT tries.

JOSEPH S. MARSHALL, OF CLEAR XVATER, KANSAS, ASSIGNOR- OF ONE- HALF TOCONNOR \V. LEEDOM, OF SAME PLACE.

WlNDlVllLL.

EPEOIPICATIQN forming part of Letters Patent No. 385,676, dated July 8,11888.

Application filtd OrtnberEl), 1887. Serial No. 253,693.

To all whom it may concern:

Be it k now u that I, J ossrtt ST 1NLEY ll'LtR' SHALL, of Clear Water,in the county of Sedgwick and State of Kansas, have invented a new andimproved \Vindmill, of which the following is a full, clear, and exactdescription.

This invention relates to windmills, the object of the invent-ion beingto provide a mill which is of simple construction, and whichconsequently may be manufactured at a low cost, and one wherein theparts shall he so connected that the bolts will not he apt to becomeloose when the wood-work of the mill is exposed to the action of theelements.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a face view of my improved form of mill, parts being brokenaway and apart of the fans being removed in order to disclose theconstruction of the mill. Fig. 2 is a central sectional elevation of themill. Fig. 3 is a detail View illustrating the construction whereby theouter spokes are connected to the wheelhub. Fig. 4 is a detail view ofthe hubeccentrie, the view being taken just inside of the inner set ofwheel-spokes. Fig. 5 is a sec tional plan view taken on the broken line00 w of Fig. 1. Fig. 6 is a detail view illustrating the arrangement ofthe eccentric and its connections, and Fig. 7 is an enlarged sectionalview of the upper end of the mast.

In the mill forming the subject-matter of this application the upperportion of the mast consists of a box-like structure, 10, that is madeup of four boards that are fastened together at their upper ends bybolts 11, said bolts passing through eyebolls 12,which extend upwardthrough apertures formed in the cap 13, the cap being held to the upperend of the mast by nuts,which engage the extending ends of the eyebolts12. The turn-table or mill head is provided with a downwardlyextendlugtubular flange, 14, which passes through the central aperture in the cap13, a shoulder, 15, that is formed upon the mill-head resting upon awasher, 16,which washer in turn rests upon the cap 13.

To one side of the millhead there is rigidly connected anoutwardly-extending shaft, 17, upon which there is loosely mounted thehub (No model.)

. of the wheel, said hub consisting of an outer section, 18, and aninner section, 19, the sec tion 18 being formed with a single llnnge,21, that is recessed to receive the hooked ends of spokes 22, whichspokes engage with a collar, 23, that surrounds the end of the hubsection 18, as is probably best shown in Figs. 2 and 5.

The hubseetion 19 is formed with a flange, 2t, that is also recessed toreceive the hooked ends of the inner spokes, 25,which spokes engage acollar, 26, as illustrated, and beyond this collar 26 there is aneccentric, 27, formed upon the hub-section 19, the outer face of theeccentric being recessed, as shown at 2 in Fig. 4, these recesses beingformed to accommodate the hooked ends of the spokes 25.

The spokes 22 and 25 pass through apertures that are formed incorner-brackets or retaining-plates 28, by which the sections of theinner octagonal frame, 29, are held together, the spokes passing onbeyond said frame to other brackets or plates, 30, by which the sectionsof the outer octagonal frame, 31, are held to place, the ends of thespokes being engaged by nuts 32, as illustrated. The plates 28 serveonly as guides for the spokes 22 and 25, the plates being held inposition by short central spokes, 33, which pass through the plates andthrough a collar, 34, which overlaps the approaching ends of thehuh-sections, heads 35, formed on the inner ends of the spokes 38,

resting beneath the collar 31 and between the approacl'iing ends of thetwo hubsections.

The fans or blades 36 are mounted in diagonal slots that are cut in thesections of the frames 29 and 31, the fans being held to place by pinsor bolts 37, as illustrated in the drawings.

At one side of the head or turn table 20 there is an ontwardly-extcndingarm,38, which serves as the support for the bearing of the maincrank-shaft 39, the inner crank-arm, 41, of said shaft being connectedto the pitrnan or pninp-rod 40, and this arm extends in about ahorizontal line inward from the main portion of the shaft, while theother arm, 42, is curved and extends downward from the main body of theshaft to be connected to the co centric-rod 43, the end of this rodbeing bifurcated to receive the arm 42, which arm is formed with anumber ofapertnres, 3,through any one of which the connecting-bolt4 maybe passed, the stroke of the pitman or pumprod being varied as theconnection between the eccentricrod and the arm 42 is changed.

The novel governor which I employ in connection with my improvedWindmill consists of fans 44 and 45, the blades of which are mounted atan opposite angle to those of the main portion of the wheel, and thesefans are secured to the ends of a rod or bar, 46, which rod or barismounted upon a shaft, 47, that is mounted in proper bearings upon themillhead 20, the shaft being cranked in order to provide for thenecessary play of the pitman or pump-rod.

The shaft 47 carries a segmental gear, 48, which gear engages with asimilar segmental gear, 49, that is bolted to the vane-shaft 50, thevane-shaft being connected to the head 20 by a bolt, 51, the axis ofwhich is concentric with that of the gear 49, the bolt extending upwardfrom a standard, 52, that is formed upon the mill-head 20, the shaft 50being further supported by a brace, 53,which is bolted to the shaft andheld to the under side of the mill-head by a bolt, 54, the axis of whichis in the same vertical line as that of the bolt 51.

The governor and vane are normally held in the position in which theyare shown in the drawings by the action of a weight, 56, that isadjustably connected toadownwardlyextending lever-arm, 57, which arm isconnected in turn to the shaft 47.

Such being the general construction of the mill, it will be seen thatwhen the mill is in the wind the wheel will turn in the direction of thearrow shown in connection therewith in Fig. l, but that the effect ofthe wind upon the governonfans 44 and 45 will be to move said fans inthe direction of the arrows shown in connection therewithin said Fig. 1;but as the fans 44 and 45 are so moved the vane will be moved in thedirection of the arrow shown in Fig. 5, and the wheel will be turned outof the windthat is, with its edge toward the wind, the speed of the millbeing regulated by adjusting the position of the weight 56, which tendsto hold the fans 44 and 45 in their normal position against the actionof the wind thereon.

In order that the mill may be thrown out of the wind by an attendant,Iconnect a chain or rope, 60, to the bar 46 at a point between then1ill-head and the fan 44, and this cord or chain I pass over a sheave,61, that is carried by an arm, 62, which extends upward from themillhead, the end of the cord or chain 60 being carried downward towithin reach from the ground.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- In a windmill, the combination, with a centralsectional hub, of inner and outer polygonal frames, brackets 28, mountedat the angles of the inner polygonal frame, a collar which overlaps thehub sections, spokes passing through said collar and through the bracket28, spokes 22 and 25,connectcd to the hubsections and arranged to passthrough apertures formed in the brackets 28, and outer brackets, 30,arranged at the angles of the outer polygonal frame, to which bracketsthe spokes 22 and 25 are connected, as and for the par pose stated.

JOSEPH S. MARSHALL.

Witnesses:

B. B. HAMMnRs, G. W. MARTIN.

